Radeon HD 7870 PCS+ Vortex II Edition is a special edition of Radeon HD 7870. This is one of today's most powerful editions of the reference as it features increases in both the core and memory clocks that went from 1000MHz to 1150MHz and from 1200MHz to 1250MHz. Benchmarks indicate the performance boost is quite extreme and around 8% when compared to the reference Radeon HD 7870.